Home / 13,020.12-19,538.28-8,863.20

Finding the Fourth Proportional to 13,020.12, 19,538.28 and 8,863.20

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Solution

The fourth proportional to 13,020.12, 19,538.28 and 8,863.20 is: 13,300.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.12 : 19,538.28 = 8,863.20 : x
  2. Step 2: Convert to fraction form
    13,020.12/19,538.28 = 8,863.20/x
  3. Step 3: Cross multiply
    13,020.12x = 19,538.28 × 8,863.20
  4. Step 4: Simplify right side
    13,020.12x = 173,171,683.30
  5. Step 5: Solve for x
    x = 173,171,683.30/13,020.12
  6. Step 6: Final answer
    x = 13,300.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.